What is the cheapest airline that flies from Chicago O'Hare Intl to Bucharest?

British Airways and KLM are the most popular carriers operating from Chicago O'Hare Intl to Bucharest

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Bucharest?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $629.

What airlines fly to Bucharest?

Turkish Airlines, Lufthansa and LOT are the top three most popular airlines that fly to Bucharest from Chicago O'Hare Intl Airport according to our data. Turkish Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 14 different airlines that fly to Bucharest on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Bucharest?

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 12h 15m.

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Bucharest?

Warsaw (WAW) has the shortest average layover time for this route: 1h 31m.

Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Bucharest?

Istanbul (IST) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bucharest?

As of January 2026, there are 14 operators available to choose from for flights from Chicago O'Hare Intl Airport to Bucharest.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Bucharest?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Bucharest.

What documentation or ID do you need to fly to Bucharest?

The required travel and health documents for your Bucharest trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bucharest. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$269 Cheap Flights from Chicago O'Hare Intl Airport to Bucharest in 2026

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Find the cheapest flights from Chicago O'Hare Intl Airport to Bucharest

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:55 pm - 5:40 pm

ORD

OTP

11h 45m1 stop

6:25 pm - 8:55 pm

OTP

ORD

33h 30m2 stops

$551LOT

Thu, Mar 12 - Sun, Mar 22

4:20 pm - 1:00 pm

ORD

OTP

12h 40m1 stop

7:00 am - 6:41 pm

OTP

ORD

19h 41m2 stops

$552Delta

Thu, Apr 30 - Thu, May 7

9:50 pm - 6:35 pm

ORD

OTP

12h 45m1 stop

5:55 am - 3:10 pm

OTP

ORD

17h 15m2 stops

$553Multiple Airlines

Sun, Feb 1 - Sun, Feb 8

8:20 pm - 8:30 pm

ORD

OTP

16h 10m1 stop

9:50 pm - 6:25 pm

OTP

ORD

28h 35m1 stop

$554Turkish Airlines

Thu, Feb 12 - Thu, Feb 19

1:57 pm - 1:00 pm

ORD

OTP

15h 03m2 stops

7:00 am - 3:14 pm

OTP

ORD

16h 14m2 stops

$555Delta

Sun, Apr 5 - Thu, Apr 16

2:05 pm - 1:00 pm

ORD

OTP

14h 55m2 stops

7:00 am - 4:18 pm

OTP

ORD

17h 18m2 stops

$556Delta

Sat, Apr 4 - Thu, Apr 16

1:26 pm - 1:00 pm

ORD

OTP

15h 34m2 stops

2:00 pm - 11:57 pm

OTP

ORD

17h 57m2 stops

$557Delta

Mon, Apr 27 - Mon, May 4

10:55 pm - 11:15 pm

ORD

OTP

17h 20m1 stop

8:20 am - 8:55 pm

OTP

ORD

43h 35m2 stops

$558LOT

Thu, Mar 12 - Sun, Mar 22

4:20 pm - 1:00 pm

ORD

OTP

12h 40m1 stop

6:00 am - 5:30 pm

OTP

ORD

19h 30m2 stops

$559Delta

Thu, Apr 30 - Wed, May 6

4:20 pm - 2:05 pm

ORD

OTP

13h 45m1 stop

5:55 am - 2:55 pm

OTP

ORD

17h 00m2 stops

$560Multiple Airlines

Mon, Jan 19 - Tue, Feb 3

LOT flights from Chicago O'Hare Intl Airport to Bucharest

Our best LOT deals on Chicago O'Hare Intl Airport to Bucharest flight tickets

LOT

Mar 12

ORD10:55 pmChicago O'Hare Intl

11h 45m

1 stop

OTP5:40 pmBucharest Otopeni Intl

Mar 22

OTP6:25 pmBucharest Otopeni Intl

33h 30m

2 stops

ORD8:55 pmChicago O'Hare Intl

$551

Find similar

LOT

Mar 12

ORD10:55 pmChicago O'Hare Intl

17h 20m

1 stop

OTP11:15 pmBucharest Otopeni Intl

Mar 22

OTP8:20 amBucharest Otopeni Intl

43h 35m

2 stops

ORD8:55 pmChicago O'Hare Intl

$558

Find similar

LOT

Mar 7

ORD9:55 pmChicago O'Hare Intl

31h 55m

1 stop

OTP1:50 pmBucharest Otopeni Intl

Mar 14

OTP6:25 pmBucharest Otopeni Intl

57h 30m

2 stops

ORD8:55 pmChicago O'Hare Intl

$594

Find similar

Delta flights from Chicago O'Hare Intl Airport to Bucharest

Our best Delta deals on Chicago O'Hare Intl Airport to Bucharest flight tickets

Delta

Apr 30

ORD4:20 pmChicago O'Hare Intl

12h 40m

1 stop

OTP1:00 pmBucharest Otopeni Intl

May 8

OTP7:00 amBucharest Otopeni Intl

19h 07m

2 stops

ORD6:07 pmChicago O'Hare Intl

$552

Find similar

Delta

Apr 5

ORD1:57 pmChicago O'Hare Intl

15h 03m

2 stops

OTP1:00 pmBucharest Otopeni Intl

Apr 16

OTP7:00 amBucharest Otopeni Intl

16h 14m

2 stops

ORD3:14 pmChicago O'Hare Intl

$555

Find similar

Delta

Apr 4

ORD2:05 pmChicago O'Hare Intl

14h 55m

2 stops

OTP1:00 pmBucharest Otopeni Intl

Apr 15

OTP7:00 amBucharest Otopeni Intl

17h 18m

2 stops

ORD4:18 pmChicago O'Hare Intl

$556

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bucharest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/12

10:55 pm-5:40 pm

1 stop11h 45m

Bucharest Otopeni Intl

Sun 3/22

6:25 pm-8:55 pm

2 stops33h 30m

$551

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 4/30

4:20 pm-1:00 pm

1 stop12h 40m

Bucharest Otopeni Intl

Thu 5/7

7:00 am-6:41 pm

2 stops19h 41m

$552

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 2/1

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Sun 2/8

5:55 am-3:10 pm

2 stops17h 15m

$553

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 2/12

8:20 pm-8:30 pm

1 stop16h 10m

Bucharest Otopeni Intl

Thu 2/19

9:50 pm-6:25 pm

1 stop28h 35m

$554

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 4/5

1:57 pm-1:00 pm

2 stops15h 03m

Bucharest Otopeni Intl

Thu 4/16

7:00 am-3:14 pm

2 stops16h 14m

$555

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 4/4

2:05 pm-1:00 pm

2 stops14h 55m

Bucharest Otopeni Intl

Thu 4/16

7:00 am-4:18 pm

2 stops17h 18m

$556

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 4/27

1:26 pm-1:00 pm

2 stops15h 34m

Bucharest Otopeni Intl

Mon 5/4

2:00 pm-11:57 pm

2 stops17h 57m

$557

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/12

10:55 pm-11:15 pm

1 stop17h 20m

Bucharest Otopeni Intl

Sun 3/22

8:20 am-8:55 pm

2 stops43h 35m

$558

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 4/30

4:20 pm-1:00 pm

1 stop12h 40m

Bucharest Otopeni Intl

Wed 5/6

6:00 am-5:30 pm

2 stops19h 30m

$559

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 1/19

4:20 pm-2:05 pm

1 stop13h 45m

Bucharest Otopeni Intl

Tue 2/3

5:55 am-2:55 pm

2 stops17h 00m

$560

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Bucharest

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Bucharest?

In general, October is the cheapest month to fly from Chicago O'Hare Intl Airport to Bucharest. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $540. If you aren’t able to travel to Bucharest during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $562.

What is the cheapest day to depart on your flight to Bucharest?

Our data shows that Monday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $829. The most expensive day to fly to Bucharest is Friday, with ticket prices averaging around $856.

What is the cheapest Chicago O'Hare Intl to Bucharest flight route?

Fly from Chicago O'Hare Intl to Bucharest Otopeni Intl for the best Chicago O'Hare Intl - Bucharest flight prices

How far in advance should I book a flight to Bucharest?

You are more likely to see cheaper flights to Bucharest from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest for around $728 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest from Chicago O'Hare Intl Airport for as low as $528 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Bucharest flights?

There is only 1 cabin class available to choose from on Chicago O'Hare Intl to Bucharest flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to Bucharest flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Bucharest.

When to book flights from Chicago O'Hare Intl Airport to Bucharest

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Bucharest according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Bucharest (ORD to BUH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Bucharest

Best Price Found	$218
Fastest flight time	9h 50m
Direct flights	Mon and Fri
Airports in Bucharest	2 airports

The best one-way flight to Bucharest from Chicago O'Hare Intl Airport in the past 72 hours is $218. The best round-trip flight deal from Chicago O'Hare Intl Airport to Bucharest found on momondo in the last 72 hours is $809.

The fastest flight from Chicago O'Hare Intl Airport to Bucharest takes 9h 50m

Direct flights go from Chicago O'Hare Intl Airport to Bucharest on Monday and Friday. The only airline offering direct flights is HiSky.

There are 2 airports in Bucharest. From Chicago O'Hare Intl Airport there are direct flights to Bucharest Otopeni Intl (OTP).

Search flight deals

How far is Chicago O'Hare Intl to Bucharest by plane?
A flight from Chicago O'Hare Intl to Bucharest will travel around 5205.0 mi. Flights usually cover this in 9h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Bucharest?
Prices for flights from Chicago O'Hare Intl Airport to Bucharest are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bucharest?
As of January 2026, there are 14 operators available to choose from for flights from Chicago O'Hare Intl Airport to Bucharest.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Bucharest?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Bucharest.
What documentation or ID do you need to fly to Bucharest?
The required travel and health documents for your Bucharest trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bucharest. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Bucharest?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago O'Hare Intl Airport to Bucharest is Airbus A330 (100.00% of total bookings).
What is the most popular airline from Chicago O'Hare Intl Airport to Bucharest?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Bucharest, the leading airline is Turkish Airlines, making up 23% of the total bookings. Other popular airlines include Lufthansa with 20%, LOT with 14%, and British Airways with 14%.

Best airlines flying from Chicago O'Hare Intl Airport to Bucharest

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Bucharest with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $385	Free Cancellation	Rating 7.4 1,629 reviews	Search Scandinavian Airlines flights
Turkish Airlines	PriceFrom $504	Free Cancellation	Rating 7.3 4,150 reviews	Search Turkish Airlines flights
Austrian Airlines	PriceFrom $517	Free Cancellation	Rating 7.6 889 reviews	Search Austrian Airlines flights
LOT	PriceFrom $562	Free Cancellation	Rating 7.5 1,163 reviews	Search LOT flights
KLM	PriceFrom $568	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
Air France	PriceFrom $569	Free Cancellation	Rating 7.4 1,518 reviews	Search Air France flights
Lufthansa	PriceFrom $569	Free Cancellation	Rating 6.8 7,681 reviews	Search Lufthansa flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.9 8,017 reviews	Search Delta flights
British Airways	PriceFrom $575	Free Cancellation	Rating 6.7 7,646 reviews	Search British Airways flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights

Otopeni

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bucharest?

It is quick and easy to find Chicago to Bucharest flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bucharest that suits you.

Can I find flights from Chicago to Bucharest with flexible booking policies on momondo?

Flights from Chicago to Bucharest with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Bucharest?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bucharest from Chicago.

I’m not ready to book a flight from Chicago to Bucharest right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Bucharest flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Bucharest Otopeni Intl Airport

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Cheap flights from Chicago O'Hare Intl Airport to Bucharest from $269

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Big names and deals

Filter for what you want

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Find the cheapest flights from Chicago O'Hare Intl Airport to Bucharest

Cheap round-trip flights

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LOT flights from Chicago O'Hare Intl Airport to Bucharest

Our best LOT deals on Chicago O'Hare Intl Airport to Bucharest flight tickets

Delta flights from Chicago O'Hare Intl Airport to Bucharest

Our best Delta deals on Chicago O'Hare Intl Airport to Bucharest flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bucharest that are best for you.

See travel insights to Bucharest from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Bucharest

What is the cheapest month to fly to Bucharest?

What is the cheapest day to depart on your flight to Bucharest?

Our data shows that Monday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $829. The most expensive day to fly to Bucharest is Friday, with ticket prices averaging around $856.

What is the cheapest Chicago O'Hare Intl to Bucharest flight route?

Fly from Chicago O'Hare Intl to Bucharest Otopeni Intl for the best Chicago O'Hare Intl - Bucharest flight prices

How far in advance should I book a flight to Bucharest?

What cabin class options are available on Chicago O'Hare Intl to Bucharest flights?

There is only 1 cabin class available to choose from on Chicago O'Hare Intl to Bucharest flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to Bucharest flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Bucharest.

What is the cheapest airline that flies from Chicago O'Hare Intl to Bucharest?

British Airways and KLM are the most popular carriers operating from Chicago O'Hare Intl to Bucharest

What airlines fly to Bucharest?

Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Bucharest?

Istanbul (IST) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Bucharest?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $629.

Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Bucharest?

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 12h 15m.

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Bucharest?

Warsaw (WAW) has the shortest average layover time for this route: 1h 31m.

When to book flights from Chicago O'Hare Intl Airport to Bucharest

Cheap Chicago O'Hare Intl Airport to Bucharest (ORD to BUH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Bucharest

Best Price Found

Fastest flight time

Direct flights

Airports in Bucharest

How far is Chicago O'Hare Intl to Bucharest by plane?

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Bucharest?

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bucharest?

How old do you have to be to fly from Chicago O'Hare Intl Airport to Bucharest?

What documentation or ID do you need to fly to Bucharest?

What is the most popular plane model from Chicago O'Hare Intl Airport to Bucharest?

What is the most popular airline from Chicago O'Hare Intl Airport to Bucharest?

Best airlines flying from Chicago O'Hare Intl Airport to Bucharest

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Bucharest with momondo

Traveling to a place near Bucharest?

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bucharest?

Can I find flights from Chicago to Bucharest with flexible booking policies on momondo?

How can momondo help me find flights from Chicago to Bucharest?

I’m not ready to book a flight from Chicago to Bucharest right now. Can momondo alert me if prices change?

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Airports listed have a maximum distance of 9.6 mi from Bucharest